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Why does simple molecular substances have no electrical conductivity?
Wiki User
∙ 6y ago
For something to conduct electricity, it must have two properties:
1. Free moving particles.
2. Charged particles.
Simple covalent molecules have neither properties and so it cannot conduct electricity.
Wiki User
∙ 13y ago
Wiki User
∙ 13y agothey do not have mobile electrons or ions which act as charge carriers.
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How do you differentiate simple molecular compounds and giant molecular compounds?
simple molecular compounds have weak forces of atraction.
Describe General trend in physical appearance of the elements in period 3?
Sodium, magnesium and aluminum are all good conductors of electricity. Silicon is a semiconductor.Sodium, magnesium and aluminum all have metallic structures, which accounts for their electrical conductivity and relatively high melting and boiling points.The nuclei of the atoms gets more positively charged.Melting and boiling points rise across the three metalsSilicon has the highest melting point.Phosphorus, sulphur, chlorine and argon are simple molecular substances with only van der Waals attractions between the molecules. Their melting or boiling points will be lower than those of the first four members of the period which have giant structures.These four substance with simple molecular structures also do not conduct electricity.
Why do you describe many inorganic substances as simple and many organic substances as complex?
Mainly because of the immensely larger number of molecular configurations organic compounds may, can and will attain as compared to the simpler requirements of inorganic {organic chemistry = the chemistry of Carbon} elemental bonding.
Are compounds the simplest type of substances and cannot be broken down into any other substances?
No: Compounds are simple mixtures of substances
A chemical combination of simple substances is called an?
A compound.
Do simple molecular substances conduct electricity?
Most molecular substances do not conduct electricity since the ions don't dissociate very well with molecular substances. However, most ionic substances do conduct electricity very well due to their ability to dissociate very well in water.
What is the physical significance of Nernst-Einstein equation?
The equation relates the electrical conductivity to the diffusivity of its anion and cation constituents. While electrical conductivity is relatively simple to measure, diffusivity is a bit more complicated. Measuring the electrical conductivity of a solution or melt one can study materials properties and interaction.
Do simple molecular substances have high or low melting and boiling points?
Yes, molecular solids have relatively low melting points.
Do substances that usually contain covalent bonds have a giant or simple molecular structure?
Such compounds can have either a giant or a simple molecular structure. Cellulose is an example of a material with a giant structure, and carbon monoxide has a very simple one.
What are the properties of simple covalent substances such as chlorine oxygen and water?
The properties of simple covalent substances such as chlorine, oxygen and water are that it has low melting and boiling points. This is because the weak intermolecular forces break down easily. Secondly, another property is the simple covalent substances are non-conductive therefore the substances with a simple molecular structure do not conduct electricity. This is because they do not have any free electrons or an overall electric charge.
How do you differentiate simple molecular compounds and giant molecular compounds?
simple molecular compounds have weak forces of atraction.
Describe General trend in physical appearance of the elements in period 3?
Sodium, magnesium and aluminum are all good conductors of electricity. Silicon is a semiconductor.Sodium, magnesium and aluminum all have metallic structures, which accounts for their electrical conductivity and relatively high melting and boiling points.The nuclei of the atoms gets more positively charged.Melting and boiling points rise across the three metalsSilicon has the highest melting point.Phosphorus, sulphur, chlorine and argon are simple molecular substances with only van der Waals attractions between the molecules. Their melting or boiling points will be lower than those of the first four members of the period which have giant structures.These four substance with simple molecular structures also do not conduct electricity.
What are some properties of molecular compounds?
Simple molecular structures like H2O and CO2 have the following properties: 1) Physical state: usually liquids and gases at room temperature due to weak intermolecular forces 2) Melting and boiling points: low (below 2000 C) melting and boiling points due to weak intermolecular forces 3) Electrical conductivity: cannot conduct electricity because there are no free electrons 4) Solubility: insoluble in water, but soluble in organic substances such as petrol Macromolecular structures such as diamond and SiO2 have the following properties: 1) Physical state: hard solids at room temperature due to the many strong covalent bonds holding the atoms together 2) Melting and boiling points: high melting and boiling points due to the many strong covalent bonds that must be broken before the substance can change state 3) Electrical conductivity: cannot conduct electricity because there are no free electrons 4) Solubility: insoluble
Is it necessary to measure the conductivity of a material?
In many cases, yes, it is necessary to measure the conductivity of a material. We need to know how well materials conduct electricity, particularly if these materials are used in the construction of anything electrical or electronic. We need to know what we can use around electrical circuits that won't conduct well, and we need to find things to make up that circuit that are good conductors. Simple, easy to understand.
What Material is resistor made out off?
A powder called 'Ferrite' that is tightly compressed into the resistor. It's level of electrical conductivity changes as the compression rate changes - so the principle is simple. Happy to help. 'Matt
Why do you describe many inorganic substances as simple and many organic substances as complex?
Mainly because of the immensely larger number of molecular configurations organic compounds may, can and will attain as compared to the simpler requirements of inorganic {organic chemistry = the chemistry of Carbon} elemental bonding.
What is driven by molecular energy?
diffusion, simple
